 | Left-handed individuals exhibit higher levels of hyper-competitiveness and are less likely to avoid competition due to anxiety compared to right-handers. No significant difference in physical dexterity was observed between groups. These findings support the Evolutionarily Stable Strategy theory, suggesting left-handedness persists due to psychological advantages in competitive contexts. |
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 | Chimpanzees display a strong, natural attraction to crystals, preferring them over ordinary stones and distinguishing them by properties such as transparency, symmetry, and luster. This behavior suggests that the human fascination with crystals, observed in archaeological contexts for at least 780,000 years, may have deep evolutionary origins linked to the unique physical characteristics of crystals. |
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 | Domestic cats accumulate rare modified triglycerides with unusual chemical structures, including ether-linkages, in their kidney cells from an early age. This lipid buildup is uncommon in other mammals and may contribute to chronic kidney disease by causing long-term stress and tissue damage in feline kidneys. These findings highlight a unique metabolic trait that could inform future prevention and treatment strategies. |
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 | A microneedle skin patch enables painless, noninvasive sampling of immune cells and inflammatory signals directly from the skin within minutes to hours, eliminating the need for blood draws or biopsies. The patch effectively captures resident memory T cells and other biomarkers, facilitating immune monitoring in conditions like vitiligo, psoriasis, and aging, and may complement traditional diagnostic methods. |
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 | Europe’s landscapes over the past 20 million years were predominantly mosaics of open woodlands, grasslands, and scrub, shaped by large herbivores, rather than dense, closed-canopy forests. Dense, dark forests are a recent phenomenon, and current afforestation practices do not reflect the ecological conditions in which most European species evolved. |
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 | A magnetic gel guided by an external magnetic field has been developed for left atrial appendage occlusion in atrial fibrillation. In rat and pig models, the gel fully sealed the appendage, resisted blood flow, and integrated with heart tissue without toxicity, inflammation, or device-related clots. This approach addresses limitations of current devices and may offer safer, more effective stroke prevention. |
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 | Feral horses and cattle, when allowed to roam freely, create dynamic and varied landscapes that enhance ecosystem resilience and biodiversity. Their differing grazing patterns prevent uniform vegetation, maintaining open habitats and supporting diverse species. Areas most used by these animals recover quickly after drought, highlighting their role in climate adaptation. Placement of infrastructure can strongly influence animal movement and landscape outcomes. |
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 | CeMgAl11O19, previously classified as a quantum spin liquid, actually exhibits a novel non-quantum state of matter. Its lack of magnetic ordering and continuum of low-energy states arise from competing ferromagnetic and antiferromagnetic interactions, not quantum effects. This state allows multiple low-energy configurations without quantum transitions between them. |
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 | Amygdala volume in macaques is positively associated with social tolerance, with more tolerant species exhibiting larger amygdalae. This relationship is evident early in life and varies with developmental stage, while hippocampal volume shows limited association. The findings indicate that neuroanatomical differences underlie social tolerance and are shaped by both development and social environment. |
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 | A rapid synthetic method enables the full laboratory assembly of fusicoccadiene, a complex hydrocarbon precursor to bioactive fusicoccanes with potential in cancer therapy. The approach allows precise, site-specific modifications of the molecule’s 5-8-5 ring system, facilitating the creation of novel analogs for future drug discovery and biomedical applications. |
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 | Quantum memory depends on whether the evolution of states or observables is considered. A process may appear memoryless in one framework but exhibit memory in the other, indicating that quantum memory is more nuanced than previously recognized. This distinction has implications for understanding quantum dynamics and for developing quantum technologies that manage noise and environmental effects. |
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 | A 7.2-million-year-old femur from Bulgaria attributed to Graecopithecus shows adaptations for bipedalism, predating known African hominins. This suggests early human ancestors may have originated in the Balkans, with bipedalism evolving there before dispersal to Africa. The findings challenge the traditional view of an exclusively African origin for the earliest hominins. |
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 | Autistic individuals, on average, score lower on mathematical tests and show greater variability in mathematical abilities compared to non-autistic peers. Intelligence and age influence these differences. The gap in math performance between autistic and non-autistic individuals has increased over recent decades, highlighting the need for individualized educational approaches and improved research methodologies. |
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 | AI models for wildlife identification often fail to generalize beyond their training environments, highlighting a "transferability crisis." Performance benchmarks do not reliably predict real-world effectiveness, as models may appear accurate on test datasets but struggle with unfamiliar scenarios. Reliable evaluation requires testing AI systems within their intended real-world contexts. |
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 | Truth functions as a foundational human value, essential for knowledge, social cohesion, and moral integrity. Its loss undermines our ability to live meaningful, dignified lives and erodes what defines our humanity. Upholding truth requires conscious choice, critical inquiry, and courage, as it is vital for both survival and the pursuit of understanding. |
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 | The MeerKAT radio telescope has detected the most distant and luminous hydroxyl gigamaser, HATLAS J142935.3–002836, over 8 billion light-years away. This natural radio "laser" originates from a merging galaxy and is further amplified by gravitational lensing. The discovery demonstrates MeerKAT's capabilities and provides a new tool for probing galaxy collisions and cosmic evolution. |
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 | Electron transfer across solar materials can occur within 18 femtoseconds, matching the timescale of molecular vibrations. This ultrafast charge separation is driven by specific vibrational motions that act as a "molecular catapult," challenging previous assumptions that strong electronic coupling and large energy offsets are required. Harnessing these vibrations may enable more efficient solar energy conversion. |
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 | Analysis of the oldest Milky Way stars, using precise Gaia data, indicates a most probable universe age of about 13.6 billion years. This estimate is inconsistent with the younger age implied by local expansion measurements (Cepheids and supernovae) but aligns with the age inferred from the cosmic microwave background, offering an independent constraint in the Hubble tension debate. |
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 | Higher consumption of ultra-processed foods during preschool years is associated with increased behavioral and emotional difficulties, including anxiety, fearfulness, aggression, and hyperactivity in childhood. Each 10% increase in calories from ultra-processed foods correlates with higher behavioral problem scores, while replacing them with minimally processed foods is linked to lower scores. |
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 | Tubulin, a key component of microtubules, can prevent Tau and alpha synuclein from forming toxic aggregates linked to neurodegenerative diseases such as Alzheimer's and Parkinson's. By promoting their normal cellular functions instead of blocking their condensation, tubulin reduces harmful protein clumping, suggesting a potential therapeutic approach that preserves neuronal health. |
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